Audio Transformers

Audio Transformers are transformers designed to be used in the amplifiers and high-frequency audio and voice circuits, for coupling ad impendence matching applications. The transformers allow an AC input signal to produce a related AC output signal without the input and the output being physically connected together. This is accomplished by having two or more coils of insulated wire wound around a magnetic metal core. When the AC signal passes through the input winding, a related AC signal appears on the output winding via the inductive coupling.
Audio Transformers perform several functions:
• They can step up (increase) or step down (decrease) a signal voltage
• They can increase or decrease the impedance of circuit
• Convert the circuit from unbalanced to balanced and from balanced to unbalanced
• Block DC current in a circuit while allowing the AC current flow
• They electrically isolate one audio device from another

There are two main types of transformers:
• Step-up / Step-down transformers – The primary and the secondary coils have a different number of windings, that means they have different impedances. Different impedances cause the signal level changed as it goes through the transformer.
• 1:1 transformers – Each coil has exactly the same number of windings which makes the impedance identical. This transformer doesn’t change the signal level but guarantees the physical electrical insulation between coils. These transformers are usually called Isolation Transformers.

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Description Prix Primary Impedance Secondary Impedance Primary DC Resistance Power Rating Current Rating Secondary DC Resistance Dimensions Mounting Type Termination Type Weight Depth Diameter Length Width
N° de stock RS 123-7235
Référence fabricantZ30A23C
MarqueOEP
43,68 €
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200 Ω, 800 Ω 5kΩ 42 Ω, 45 Ω - - 929Ω 36 x 30 x 16mm Through Hole PC Pin 57g 16mm - 36mm 30mm
N° de stock RS 168-3232
Référence fabricant749196548
4,26 €
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- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
N° de stock RS 123-7210
Référence fabricantA262A47E
MarqueOEP
17,28 €
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150 Ω, 600 Ω 2.5 kΩ, 10 kΩ 20.6Ω 100mW - 474Ω 27.94 x 22.9 x 22.2mm Through Hole PC Pin 40g 22.2mm - 27.94mm 22.9mm
N° de stock RS 106-8578
Référence fabricantDA101C
1,268 €
Each (In a Tube of 50)
Unité
- - - - - - 9 x 6.35 x 10.16mm Through Hole - - 10.16mm - 9mm 6.35mm
N° de stock RS 168-3106
Référence fabricant749196118
2,857 €
Each (On a Reel of 500)
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- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
N° de stock RS 123-7221
Référence fabricantZ1673E
MarqueOEP
8,65 €
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50Ω 600Ω 10.3Ω 2mW - 150Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
N° de stock RS 210-6481
Référence fabricantTF021
MarqueOEP
10,93 €
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- 0.39Ω 2W - 0.47Ω 65 x 40 x 37mm Chassis Mount - 130g 37mm - 65mm 40mm
N° de stock RS 168-3301
Référence fabricant749196338
3,05 €
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- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
N° de stock RS 168-3246
Référence fabricant749010310
5,86 €
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Unité
- - - - - - 12.7 x 8.67 x 4mm Surface Mount Solder - 4mm - 12.7mm 8.67mm
N° de stock RS 168-3119
Référence fabricant749196338
2,96 €
Each (On a Reel of 300)
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- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
N° de stock RS 667-6082
Référence fabricantZ218A7E
MarqueOEP
11,00 €
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600Ω - 171Ω - - 234Ω 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
N° de stock RS 667-6044
Référence fabricantZ21805C
MarqueOEP
21,63 €
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500Ω 1kΩ 37Ω - - 172Ω 25 x 19.3 x 18.5mm Surface Mount - 28g 18.5mm - 25mm 19.3mm
N° de stock RS 800-4338
Référence fabricantDA102MC
1,34 €
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Unité
- - - - - - 9.52 x 9 x 6.35mm Surface Mount - 0.9g 6.35mm - 9.52mm 9mm
N° de stock RS 168-3118
Référence fabricant749196328
5,37 €
Each (On a Reel of 300)
Unité
- - 145mΩ - 830mA - 17.5 x 16 x 9mm Surface Mount Solder - 9mm - 17.5mm 16mm
N° de stock RS 168-3219
Référence fabricant749196518
3,91 €
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- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm
N° de stock RS 667-6076
Référence fabricantZ218A2E
MarqueOEP
11,00 €
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600Ω - 60Ω - - 165Ω 21.5 x 16.3 x 18mm Through Hole - - 18mm - 21.5mm 16.3mm
N° de stock RS 168-3109
Référence fabricant749196148
4,409 €
Each (On a Reel of 500)
Unité
- - 344mΩ - 500mA - 12.9 x 9.2 x 6.2mm Surface Mount Solder - 6.2mm - 12.9mm 9.2mm
N° de stock RS 123-7230
Référence fabricantZ1686E
MarqueOEP
8,65 €
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600Ω 900Ω 117Ω 2mW - 180Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
N° de stock RS 123-7228
Référence fabricantZ1682E
MarqueOEP
8,65 €
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150Ω 600Ω 29.5Ω 2mW - 150Ω 18 x 18 x 15mm Through Hole PC Pin 14g 15mm - 18mm 18mm
N° de stock RS 168-3125
Référence fabricant749196518
3,801 €
Each (On a Reel of 120)
Unité
- - 102mΩ - 1.35A - 21.5 x 21 x 12mm Surface Mount Solder - 12mm - 21.5mm 21mm